Last night EEUU's biggest sport event of the year, the Super Bowl, was held and Christina was the one singing the national anthem... but she messed it up!

She lost it while singing the anthem and sang a line instead of another one and that really angered everyone and she's been hardly criticised.

I think that it's ok that she was nervous but she's been in this career for years now and she knew she had to sing te anthem so she should have done that right, there are many rumors that say that she needs to go to rehab because she has a problem with alcohol and this isn't helping...